﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using teavch.Util.Formatter.Sample.Mvc.Models;

namespace teavch.Util.Formatter.Sample.Mvc.Controllers
{
	public class AccountController : Controller
	{

		//
		// GET: /Account/LogOn

		public ActionResult LogOn()
		{
			return View();
		}

		//
		// POST: /Account/LogOn

		[HttpPost]
		public ActionResult LogOn( LogOnModel model, string returnUrl )
		{
			if ( ModelState.IsValid )
			{
				if ( Membership.ValidateUser( model.UserName, model.Password ) )
				{
					FormsAuthentication.SetAuthCookie( model.UserName, model.RememberMe );
					if ( Url.IsLocalUrl( returnUrl ) && returnUrl.Length > 1 && returnUrl.StartsWith( "/" )
							&& !returnUrl.StartsWith( "//" ) && !returnUrl.StartsWith( "/\\" ) )
					{
						return Redirect( returnUrl );
					}
					else
					{
						return RedirectToAction( "Index", "Home" );
					}
				}
				else
				{
					ModelState.AddModelError( "", "The user name or password provided is incorrect." );
				}
			}

			// If we got this far, something failed, redisplay form
			return View( model );
		}

		//
		// GET: /Account/LogOff

		public ActionResult LogOff()
		{
			FormsAuthentication.SignOut();

			return RedirectToAction( "Index", "Home" );
		}

		//
		// GET: /Account/Register

		public ActionResult Register()
		{
			return View();
		}

		//
		// POST: /Account/Register

		[HttpPost]
		public ActionResult Register( RegisterModel model )
		{
			if ( ModelState.IsValid )
			{
				// Attempt to register the user
				MembershipCreateStatus createStatus;
				Membership.CreateUser( model.UserName, model.Password, model.Email, null, null, true, null, out createStatus );

				if ( createStatus == MembershipCreateStatus.Success )
				{
					FormsAuthentication.SetAuthCookie( model.UserName, false /* createPersistentCookie */);
					return RedirectToAction( "Index", "Home" );
				}
				else
				{
					ModelState.AddModelError( "", ErrorCodeToString( createStatus ) );
				}
			}

			// If we got this far, something failed, redisplay form
			return View( model );
		}

		//
		// GET: /Account/ChangePassword

		[Authorize]
		public ActionResult ChangePassword()
		{
			return View();
		}

		//
		// POST: /Account/ChangePassword

		[Authorize]
		[HttpPost]
		public ActionResult ChangePassword( ChangePasswordModel model )
		{
			if ( ModelState.IsValid )
			{

				// ChangePassword will throw an exception rather
				// than return false in certain failure scenarios.
				bool changePasswordSucceeded;
				try
				{
					MembershipUser currentUser = Membership.GetUser( User.Identity.Name, true /* userIsOnline */);
					changePasswordSucceeded = currentUser.ChangePassword( model.OldPassword, model.NewPassword );
				}
				catch ( Exception )
				{
					changePasswordSucceeded = false;
				}

				if ( changePasswordSucceeded )
				{
					return RedirectToAction( "ChangePasswordSuccess" );
				}
				else
				{
					ModelState.AddModelError( "", "The current password is incorrect or the new password is invalid." );
				}
			}

			// If we got this far, something failed, redisplay form
			return View( model );
		}

		//
		// GET: /Account/ChangePasswordSuccess

		public ActionResult ChangePasswordSuccess()
		{
			return View();
		}

		#region Status Codes
		private static string ErrorCodeToString( MembershipCreateStatus createStatus )
		{
			// See http://go.microsoft.com/fwlink/?LinkID=177550 for
			// a full list of status codes.
			switch ( createStatus )
			{
				case MembershipCreateStatus.DuplicateUserName:
					return "User name already exists. Please enter a different user name.";

				case MembershipCreateStatus.DuplicateEmail:
					return "A user name for that e-mail address already exists. Please enter a different e-mail address.";

				case MembershipCreateStatus.InvalidPassword:
					return "The password provided is invalid. Please enter a valid password value.";

				case MembershipCreateStatus.InvalidEmail:
					return "The e-mail address provided is invalid. Please check the value and try again.";

				case MembershipCreateStatus.InvalidAnswer:
					return "The password retrieval answer provided is invalid. Please check the value and try again.";

				case MembershipCreateStatus.InvalidQuestion:
					return "The password retrieval question provided is invalid. Please check the value and try again.";

				case MembershipCreateStatus.InvalidUserName:
					return "The user name provided is invalid. Please check the value and try again.";

				case MembershipCreateStatus.ProviderError:
					return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

				case MembershipCreateStatus.UserRejected:
					return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

				default:
					return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
			}
		}
		#endregion
	}
}
